C# 如何使用Roslyn Analyzer检测特定方法是否不包含try-catch块?
我想分析一下C# 如何使用Roslyn Analyzer检测特定方法是否不包含try-catch块?,c#,visual-studio,roslyn,roslyn-code-analysis,C#,Visual Studio,Roslyn,Roslyn Code Analysis,我想分析一下 public void GetDetails() { try { //some code } catch() { //some code } } 在Roslyn Analyzer项目中,我有如下内容: public override void Initialize(AnalysisContext context) { context.RegisterSyntaxNodeAction(AnalyzeCode
public void GetDetails()
{
try
{
//some code
}
catch()
{
//some code
}
}
在Roslyn Analyzer项目中,我有如下内容:
public override void Initialize(AnalysisContext context)
{
context.RegisterSyntaxNodeAction(AnalyzeCode, SyntaxKind.MethodDeclaration);
}
private void AnalyzeCode(SyntaxNodeAnalysisContext context)
{
//I want here something like below
context.RegisterSyntaxNodeAction(ctx =>
{
//set some flag
}, SyntaxKind.TryStatement);
//similar for catch block
}
所以,根据标志,我可以确定try-catch是否存在
我想通过在AnalyzeCode()方法中编写代码,以便只扫描MethodDeclaration,从而找到GetDetails()方法中存在的“try”和“catch”语句
注意:应忽略注释行
提前感谢。您需要分析方法,而不是单个try语句。另外,我更喜欢将lambda提取到它自己的方法中,因此它看起来像这样:
public override void Initialize(AnalysisContext context)
{
context.RegisterSyntaxNodeAction(
AnalyzeMethodForMissingTryBlock, SyntaxKind.MethodDeclaration);
}
private void AnalyzeMethodForMissingTryBlock(SyntaxNodeAnalysisContext context)
{
// Search all descendants for a try statement
if (context.Node.DescendantNodes().Any(n => n.Kind() == SyntaxKind.TryStatement))
{
return;
}
// Try block was not found, so we report a diagnostic
var method = (MethodDeclarationSyntax)context.Node;
var diagnostic = Diagnostic.Create(
Rule,
context.Node.GetLocation(),
method.Identifier.Text);
context.ReportDiagnostic(diagnostic);
}